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Engine vibration shows at the bottom of the page as a digital readout and a moving pointer on an analog scale. Vibration shows in normalized units from zero to five. The scale is white. A message shows below each digital readout. The message shows the rotor with the highest vibration level. The messages are N1, N2, or BB (broadband). During a high vibration condition, the vibration indication goes to reverse video.
In-Flight Start Data
During in-flight start conditions, if airspeed and altitude conditions require cross-bleed, then a X-BLD message shows. A fuel-on line shows the RPM level where the crew applies fuel. The message and indication are magenta. The fuel-on line shows when an engine shuts down in the air.
During an in-flight engine shutdown, the secondary engine display format automatically shows.
Duct Pressure
The duct pressure legend and readout show when one of the engines is not running and the fire handle is not pulled.
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PRIMARY DISPLAY SYSTEM -SECONDARY ENGINE DISPLAY FORMAT

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PRIMARY DISPLAY SYSTEM -EICAS ENGINE COMPACTED DISPLAY FORMAT

General
When either the upper center or lower center is not available for engine data, engine parameters from the EICAS display and secondary engine display formats show in a compacted format. With only one DU available, EICAS is in the limited mode of operation.
When the above conditions exist, the ENG switch on the display select panel (DSP) controls the compacted format. The ENG switch changes the compacted format to the EICAS display format or the EICAS display format to the engine compacted format.
The FUEL switch controls the display of the fuel data block when EICAS is in the limited mode of operation.
The AIR switch controls the display of the ECS data block when EICAS is in the limited mode of operation.
The compacted format also shows when a maintenance page shows on the lower center DU.
Compacted Format Features
EPR and N1 are the same as the EICAS display format.
EGT shows as a digital readout only. During an engine exceedance condition, the engine start limit shows as a numerical readout next to the EGT readout.
N2 shows as a numerical readout only. Cross-bleed (XB) shows next to N2.
Fuel flow and oil quantity are the same as the secondary engine display format except that the readout box goes away.
Oil pressure, oil temperature, and vibration show digitally only. The readout box and the analog scale go away.
This data shows in the same way as the EICAS display format:
*
Alert and annunciation messages

*
Gear information

*
Flap/slat information

*
Cabin pressure data

*
Fuel quantity and temperature.

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PRIMARY DISPLAY SYSTEM -EICAS ENGINE COMPACTED DISPLAY FORMAT

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PRIMARY DISPLAY SYSTEM -CREW ALERT MESSAGES

General
The EICAS display and engine compacted formats show these types of messages:
*
Warnings

*
Cautions

*
Advisory

*
Comm

*
Memo

*
In-flight start.

Warning, caution, and advisory messages are crew alerting messages. Comm messages tell the crew of communication requests. Memo messages are crew reminders of the current state of manually selected normal conditions.
The most important messages in sequence are:
*
Warnings

*
Cautions

*
Advisory

*
Comm and FMC medium

*
Comm low

*
Memo.

Warning, caution, and advisory messages show from the top down with the most recent message at the top of its category.
Comm and memo messages start on line eleven and work up. The most recent message shows at the bottom of its group.
There are eleven messages available on each page. The CANCEL/RECALL switch controls message paging when an overflow condition exists. A page number shows when an overflow condition exists. A bullet next to a message identifies a comm message.
Warning Messages
Warning messages have a relation to operational or airplane system conditions that require immediate crew action. Warning messages are red and have an associated aural and dedicated master warning lights.
The most recent warning message shows at the top of the message field. You cannot cancel warning messages with the cancel/recall switch.
The master warning light reset switch cancels aurals and master warning light indications. The message stays on the display until the condition that caused the message goes away.
　
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